8400GS：全球首款完整HD解码GPU-快科技-科技改变生活

8400GS：全球首款完整HD解码GPU

ZNXF
2007年10月30日 00:21
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NVIDIA宣称，其即将发布的50美元以下显卡8400GS将是“全球首款拥有完整HD解码”的GPU，我们知道该GPU将基于65nm的G98/D8M核心。 NVIDIA表示，AMD的显卡在进行H.264或VC1解码时需要借助CPU的帮助来作为蓝光/HD DVD光盘加速引擎，这一过程也被称为AES128。剩下的处理过程包括Bitstream处理CAVLC / CABAC，逆向转换（inverse transform），运动补偿（motion compensation）和去色块（deblocking）则由GPU完成。 NVIDIA的D8P，也就是未来的8400GS则可以直接处理ACS128 Blu-ray /HD DVD光盘加速引擎，完全解放了CPU，因此硬件加速性能有望超过ATI。

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